Joseph davidson



N.PETERS. PHOTO-L THOGRAPHER wAsruNGrov o c illicit/rd tatra anni (airline.

JOSEPH DAVIDSON, OF XENIA, OHIO.

Lenen Parmi No. 90,509, laterz May ,25, 1869.

IMPROVED BOUGE-MIXING- MACHINB The Schedule referred to in these Lettors Patent and making part of the same.

To whom it may concern:

Be it known that I, JOSEPH DAvIDsoN, of Xenia, in the county of Greene, and State of Ohio, have invented certain new and useful Improvements inMachines for Mixing Dough; and I do hereby' declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying' the materials` composing the dough, and delivering the same, ready for use, as hereinafter explained. Int-he drawings- Figure 1 is a vertical cross-section on the line x-x of iig. 2, and

Figure 2 is a vertical longitudinal section on the line y-y of iig. 1.

In constructing my machine, I make a cylinder, A, of any size desired, and out of any suitable material, and secure it firmly between two end pieces, B, by tierods c, as clearly shown in iig. 2. These end pieces B thus form the heads of the cylinder A, and also are made so as to form' a frame for its support, as shown in the same figure.

The upper side of the cylinder A, I provide with an opening, having a hinged door, a, for closing it, as shown in both figures, and in its centre, longitudinally, mount a shaft, O, provided with a series of radial arms, or

beaters, i, which extend nearly to the inner surface of the cylinder, and hzwe T-shaped heads, or Scrapers i,

The shaft C has its bearings in the end pieces, in such a Way as to `turn freely, and on the front side projects far enough beyond the bearing to receive a pinlion, G, and crank I. If it is desired to use other than hand-power to operate the machine, a pulley or other suitable device may be substituted for the crank.

Against the under side of the cylinder A, I place a -slightly-conical, 0r tapering receiver, D, arranged so that its smaller end may project a little beyond the face of theend piece B, as shown in iig. 2.

In the bottom of the cylinder A, I make an openn'g, K, so located and arranged as to communicate (lirectly with the receiver D, which has a corresponding opening, and provide a slide, J, as seen in the same iigure, for closing it.

In the rear` end of the receiver, and immediately under the opening, K, I locate a screw, E, by attaching it to'a shaft, F, mounted in the rear end of the receiver, and the end piece, or frame B, so as to turn freely, and, to the outer end of this shaft F, I attach a gear-wheel,

H, of any suitable size, so as to mesh into the pinion G, asclearly shown in g. 2.

In operating my machine, I rst close the opening, K, by the slide J, open the door a, and putin the flour, water, and other materials, if any. The door a is then closed and fastened, and the shaft O, with its radial arms, or stirrers, revolved rapidly by the crank I. As soon as the mixing is complete, the slide J is withy drawn, and the dough, passing down upon the screw E, is driven forward, and delivered through the small end of the receiver D.

The radial arms, or stirrers t, not only thoroughly mix the dough, but their T-headed ends keep it from sticking to the inner surface of the cylinder, by scraping it away.

The tapering form of the receiver D causes the dough to be delivered from it in a compact, instead of a spongy state, and ready for the rolls or breaks, if intLnded for crackers.

I have found, by actual experiment, that a machine thirty-six inches long and eighteen inches in diameter, run by a four-inch belt, will thoroughlyy -rniXne-third of a barrel of iiour, without any previous preparation, and deliver itl in just three and one-half minutes, ready for the breaks, and that it does not require more than two-thirds of tle'ibreaking that is required when mixed by hand.

Having thus described my invention,

1. A dough-mixing machine, consisting of the cylinder A, having a shaft, O, with radial T-headed arms attached, and provided with an opening, K, and slide J, communicating with a conical receiver, D, having a screw, E, therein, mounted on a shaft, F, the whole constructed and arranged to voperate substantially as herein described.

2. The combination ofthe cylinderAand the conical, or tapering receiver D, with screw E mounted therein,

when arranged with a connnunicating opening, K, provided with slide J, substantially as herein described, and for the purpose set forth.

JOSEPH DAVIDSON.

Witnesses: Y

R. PARTINGTON, LUTHER HANES. 

